31032022120 has 64 divisors (see below), whose sum is σ = 76568509440. Its totient is φ = 11225260800.

The previous prime is 31032022117. The next prime is 31032022129. The reversal of 31032022120 is 2122023013.

It is a junction number, because it is equal to n+sod(n) for n = 31032022094 and 31032022103.

It is not an unprimeable number, because it can be changed into a prime (31032022129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100587 + ... + 268666.

It is an arithmetic number, because the mean of its divisors is an integer number (1196382960).

Almost surely, 2^31032022120 is an apocalyptic number.

It is an amenable number.

31032022120 is an abundant number, since it is smaller than the sum of its proper divisors (45536487320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31032022120 is a wasteful number, since it uses less digits than its factorization.

31032022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369466 (or 369462 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31032022120 its reverse (2122023013), we get a palindrome (33154045133).

The spelling of 31032022120 in words is "thirty-one billion, thirty-two million, twenty-two thousand, one hundred twenty".